Interfacial insights on the dibenzo-based crown ether assisted cesium extraction in [BMIM][Tf2N]-water binary system

被引：30

作者：

Biswas, Rima ^{[1
]}

Pasumarthi, Viswanath ^{[1
]}

Banerjee, Tamal ^{[1
]}

Ghosh, Pallab ^{[1
]}

Ali, Sk. Musharaf ^{[2
]}

Joshi, Jayant M. ^{[2
]}

机构：

[1] Indian Inst Technol Guwahati, Dept Chem Engn, Gauhati 781039, Assam, India

[2] Bhabha Atom Res Ctr, Div Chem Engn, Bombay 400085, Maharashtra, India

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2017年 / 311卷 / 01期

关键词：

Liquid-liquid extraction; Crown ethers; Cesium; Ionic liquid; Distribution coefficients; MD simulation; TEMPERATURE IONIC LIQUIDS; MOLECULAR-FORCE FIELD; DYNAMICS; ALKALI; COORDINATION; IMIDAZOLIUM; SEPARATION; DENSITY; SOLVENT; CATIONS;

D O I：

10.1007/s10967-016-5050-8

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

The distribution coefficient of Cs is estimated using dibenzo-21-crown-7 (DB21C7) and di-benzo-18-crown-6 (DB18C6) in 1-butyl-3-methylimidazolium bis (trifluroromethanesulphonyl) imide (BMIMTF2N) ionic liquid by performing solvent extraction experiments. In addition, molecular dynamics studies on the extraction of cesium (Cs+) ion transfer from the aqueous phase to the BMIMTF2N phase is reported. The experimental findings gave a cesium distribution coefficient of 0.218 and 0.326, which agrees closely with the values of 0.2 and 0.5 obtained from MD simulation for the ionophores DB18C6 and DB21C7, respectively. Thus MD simulation may be helpful in screening the solvents prior to the experiments.

引用

页码：427 / 438

页数：12

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